1190Microprocessor
Foraccess,removetheseFRUs:
•“1010Externalbatterypack”onpage58
•“1020Bigdoor”onpage59
Removalstepsofthemicroprocessor
1200Systemboard
Importantnoticesforhandlingthesystemboard
Whenhandlingthesystemboard,observethefollowing:
•Thesystemboardhasanaccelerometer,whichcanbebrokenwhenseveralthousandsofG-forces
areapplied.
Note:Droppingasystemboardfromaheightofaslittleas6inchessothatitfallsflatonahardbench
cansubjecttheaccelerometertoasmuchas6000G'sofshock.
•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,or
composite.
•Avoidroughhandlingofanykind.
•Ateverypointintheprocess,besurenottodroporstackthesystemboard.
•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmatora
corrugatedconductivematerial.
Foraccess,removetheseFRUsinorder:
•“1010Externalbatterypack”onpage58
Chapter9.RemovingorreplacingaFRU81